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COMPUTER SIMULATION OF EFFECT OF ORIENTATION DIFFERENCE ON MECHANICAL PROPERTIES OF BICRYSTALLINE SPECIMENS

WEI Chao QIAN Rengen LIN Shi XIAO Jimei University of Science and Technology Beijing , Beijing , China Dept.of Mathematics and Mechanics , University of Science and Technology Beijing , Bijing 100083 , China

金属学报(英文版)

Based on the experimental results of the work-hardening processes of single crystals,the ac- commodation processes of polycrvstal deformation and the assumption of idealized polycrystal,the stress-strain relation of elasto-plastic deformation crystal was derived.The effect of orientation difference on the mechanical properties of the bicrvstalline specimens of aluminum was simulated by means of the finite element method(FEM)of elasto-plastic crystal.The results are in good agreement with the experimental results made by Clark and Chalmers in 1954.

关键词: bicrystal , null , null , null , null

晶界研究的现状和发展

周自强

材料研究学报

综述了晶界理论的发展概况,包括CSL 点阵,O-点阵和DSC 点阵等晶界模型的物理概念。对晶界研究的若干实验技术及其应用发展进行了简明介绍和评述。对晶界问题的当前研究动向进行了初步归纳。

关键词: 晶界结构 , bicrystal , structure unit

位相差对双晶试样力学性质影响的计算机模拟

卫超 , 钱仁根 , 林实 , 肖纪美

金属学报

本文依据晶体弹塑性有限单元法,由计算机模拟计算了位相差对双晶试样力学性质及应力分布规律的影响。

关键词: 双晶 , orientation difference , grain boundary , computer simulation , crystalline elastic-plastic finite element method

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